I purchased some batteries from mybatterysupply.com. They were supposed to be for my rc car. 4200 mAh 7.2 volt with tamyia connectors. 4 of them and they were about 110. Not cheap price, but I figured it would be worth it. They sent me the wrong batteries. I got same voltage and capacity, but diffent shape. I emailed them and they said I would have to just return them, I could not exchange them. SO, I go to the returns and there is a 20% restocking fee. I email back and ask if this is the case, as I got the wrong batteries and I just want to exchange them. Yup. you blew it by shopping with us, I guess they were trying to say. So, I emailed back and said you just lost a cutomer. Ok, now I figure, maybe these will fit if I jam them in, just a little. They are almost the same shape. I need the 2 stacks of 3, but got the 6 side by side. So I am just prying the cover off the side of the e-Savage and barely pushing the batteries and they come apart. No shrink wrap, just some lame hot glue that did not even bond at all to the slippery plastic covers on the batteries. Anyways, I slightly bent the rest of them and they just came apart. One of them even had a tab hitting the ground right by the pos terimial. I swear, what a crappy job. And this is what they do for a living. SO, I just took them all apart, soldered them into the right configuration and then JB welded them together, then used shrink tube on it. Now they are properly assembled. What a terrible company, do not buy anything from mybatterysupply.com

Hi people!!
I tried with li-po 14.8v and it works great, but not so good as with 2 x 7.2V NiMH, just because of the internal resistence in li-po!! Low "direct" current!! Maybe because of the quality of li-po, chinese and cheap one
My project is running well... I have to do a topic with it.. but my litlle problem is to translate everything to english, but I will try, hope you understand than